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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001250853-05-000150.txt : 20051018
<SEC-HEADER>0001250853-05-000150.hdr.sgml : 20051018
<ACCEPTANCE-DATETIME>20051018191637
ACCESSION NUMBER:		0001250853-05-000150
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051013
FILED AS OF DATE:		20051018
DATE AS OF CHANGE:		20051018

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			R F INDUSTRIES LTD
		CENTRAL INDEX KEY:			0000740664
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC CONNECTORS [3678]
		IRS NUMBER:				880168936
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1031

	BUSINESS ADDRESS:	
		STREET 1:		7610 MIRAMAR RD
		STREET 2:		BLDG 6000
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126-2313
		BUSINESS PHONE:		8585496340

	MAIL ADDRESS:	
		STREET 1:		7620 MIRAMAR RD #4100
		STREET 2:		7620 MIRAMAR RD #4100
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126-4202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CELLTRONICS INC
		DATE OF NAME CHANGE:	19910204

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KESTER LINDE
		CENTRAL INDEX KEY:			0001279455

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13301
		FILM NUMBER:		051144011

	BUSINESS ADDRESS:	
		STREET 1:		7610 MIRAMAR RD
		STREET 2:		SUITE 6000
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92126
		BUSINESS PHONE:		5419428028

	MAIL ADDRESS:	
		STREET 1:		PO BOX 47
		CITY:			LORANE
		STATE:			OR
		ZIP:			97451
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-10-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000740664</issuerCik>
        <issuerName>R F INDUSTRIES LTD</issuerName>
        <issuerTradingSymbol>RFIL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001279455</rptOwnerCik>
            <rptOwnerName>KESTER LINDE</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 47</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LORANE</rptOwnerCity>
            <rptOwnerState>OR</rptOwnerState>
            <rptOwnerZipCode>97451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-10-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5</value>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <transactionDate>
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                <transactionAcquiredDisposedCode>
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            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            <transactionCoding>
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            <transactionTimeliness>
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                <transactionPricePerShare>
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            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            <transactionCoding>
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            <transactionTimeliness>
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            <transactionAmounts>
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                    <value>1825</value>
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                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-10-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>122</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.81</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <ownershipNature>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2005-10-14</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
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            </transactionTimeliness>
            <transactionAmounts>
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                    <value>400</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.93</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>50624</value>
                </sharesOwnedFollowingTransaction>
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            <transactionDate>
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            <transactionTimeliness>
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            <transactionAmounts>
                <transactionShares>
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                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                    <value>4.99</value>
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    <ownerSignature>
        <signatureName>Linde Kester</signatureName>
        <signatureDate>2005-10-18</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Director</signatureName>
        <signatureDate>2005-10-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----